After a long conversation on the first date, O'Dea told Thomas about his friend, Erika Bragan.

Erika was suffering from polycystic kidney disease, and was desperately looking for a donor match to replace a kidney. She hadn't been able to find a match yet among her family and friends, and was set to undergo dialysis soon.

Thomas, hearing the story, got herself tested — and what do you know, she was a perfect match!!!

Then — again, after just one date — Thomas decided to undergo surgery last month to give up a kidney to Bragan!

The incredibly generous stranger said of her decision to donate her kidney:

"Anytime that you hear of some in need don't you kind of think, 'What can I do'?' I do."

And now we're happy to report all involved are healthy and doing GREAT!

But now, that's all about to change, at least according to TMZ! That's because a week from tomorrow -- on December 17 -- Khloé and Lamar's split will be legal, final, and FULL! And that's all she wrote!

As the final divorce docs are set to be stamped by a judge on that day just over a week from right now, the final terms are pretty standard and straightforward, too: